Half to cornelius griffin



No. 6l9,58l. Patented Feb. l4, I899. H. J. KROMANN.

DREDGING BUCKET. A lication filed Sept. 21, 1898.) (No Modem2-Sheets-Sheet I.

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N0. 6 9,58l- Patented Feb. l4, I899. H. J. KROMANN.

DBEDGING BUCKET.

(Application filed Sept. 21, 189B.) (No Model.) 2 Sheets-Sheei 2.

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UNITED STATES PATENT OFFICE.

HARALD JULIJ OS KROMANN, OF NEW YORK, N. Y., ASSIGNOR OF ONE- HALF TOCORNELIUS GRIFFIN, OF SAME PLACE.

DREDGlNG-BUCKET.

SPECIFICATION forming part of Letters Patent N0. 619,581, dated February14, 1899.

Application filed September 21, 1898. Serial No. 691,515. (No model.)

To aZZwhom it may concern.-

Be it known that I, HARALD J ULIJos KRO- MANN, of the city of New York,borough of Manhattan, in the county and State of New York, have inventeda new and Improved Dredging-Bucket, of which the following is a full,clear, and exact description.

The object of the invention is to provide a dred gin g-bucket especiallyadapted for dredging sand and which is simple, durable, and

economic in construction, capable of. being readily manipulated, andeffective in service.-

Another object of the in vention is to provide a sand-dredging bucketthe bottom of which may be readily opened and closed, and, furthermore,to provide means whereby the bucket may be dropped perpendicularly,carried over any desired spot where dredging is to be done, and readilyinclined so that its spout will enter the surface from which material isto be removed.

The invention consists in the novel construction and combination of theseveral parts, as will be hereinafter fully set forth, and pointed outin the claims.

Reference is to be hadto the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a side elevation of a scow and the improved dredge appliedthereto, the bucket being shown in positive lines as partly lowered andin dotted lines as further lowered and carried to a position over thesurface with which it is to engage. Fig. 2 is a View similar to Fig. 1,the bucket being shown in working position. Fig. 3 is a side elevationof the scow having the improvement applied thereto, the dredge-bucketbeing shown as elevated and in dumping position in positive lines and inreceiving position in dotted lines. side elevation of the bucket, drawnon an enlarged scale, the bottom being open. Fig. 5 is a rear end viewof the bucket. Fig. 6 is a vertical section through the bucket, thebottom thereof being closed and the section being taken practically onthe line 6 6 of Fig. 5. Fig. 7 is a plan View of a guide device adaptedfor attachment to the support for the dredging device.

Fig. 4 is a The dredging-bucket A is preferably made oval in transversesection and comprises a body open at the top, the top portion of thebody having a scoop-spout 10, either made integral therewith or attachedthereto, and at the upper end of the body of the bucket a bail 11 of anyapproved description is located. The bottom 12 of the bucket isconnected to one side of the same by hinges 13 or their equivalents, andat the narrower sides of the body longitudinal bars 14 and 16 aresecured, which bars preferably extend from the top to and beyond thebottom, each bar being provided at its lower end with a head, the headof the bar 14 being designated as 15 and the head of the opposing bar 16as 17, and each head is provided with a recess, the recesses of theheads of the two bars being made to face in opposite directions.

Preferablyin the construction of the dredgebucket the bail 11 is pivotedto the body at the upper ends of the said bars 14 and 16. The bottom 12is held closed by means of a lockbar 18, pivoted on the under face ofthe bottom, at the center thereof, by means of a pin 19. the other,forming a handle 20, and both ends of the lock-bar are adapted, when thebar extends longitudinally of the bottom, to enter the recesses in theheads of the side bars 14 and 16, as shown in Fig. 5.

At the bottom portion of that side of the bucket opposite the hinges 13and at the center of said side ahorizontal yoke 21 is secured, aguide-pulley 22 being pivoted in said yoke, and the bottom is providedwith a lip 23 at its free edge, which lip when the bottom is closed onthe body extends within the yoke 21. A chain or a rope 24 is attached tothe lip 23 and is carried over the guide-pulley 22'.

In the application of the device a turn-table B is usually mounted uponthe deck of the scow. A boom 25 is pivoted on the said turntable, beingprovided with a guide-pulley 26 at its upper end, and the boom ispivotally connected at the top by a suitable brace 28 with a mast 27,stationarily attached to the scow. A chain or a cable 29 is attached tothe bail of the bucket, said chain or cable 29 being carried over thepulley 26 and over a One end of the lock-bar is longer than secondguide-pulley 26, located on the turntable, to any source of power, andthe rope or chain 24, utilized for closing the bottom of the bucket, iscarried aboard the scow in any desired manner and is operated by hand.At one side or at both sides of the scow, near one end or both ends, ahorizontal yoke 30 is secured, and in each of said yokes a guide-pub ley31 is mounted to turn. (See Fig. 8.) In order that the bucket may bereadily manipulated from the deck and directed by hand to any portion ofthe bottom, a handle 34 is attached to the yoke 21, which handle is ofsufficient length to reach to the deck when the bucket is in operation.The handle may be made extensible in any well-known manner.

In operation the bucket is lowered in a vertical position, as shown inFig. 1, guided by its handle, the bottom being closed, and by means ofthe handle 34 the bucket is swung byhand and lowered over the side ofthe scow to any desired point where dredging is to be done, the boombeing swung outward at the same time, since the hoisting-chain of thebucket passes over the boom, and after the bucket has been carried overthe point to be dredged the lift chain or cable 29 is carried by handover the guide-pulley 31, located on the scow at the side over which thebucket is dropped. When the hoisting cable or chain is thus carried toan engagement with the guide-pulley 31, as shown in Fig. 2, the bucketwill be so inclined, assisted by the handle, that the spout will enterthe surface to be dredged, and by drawing the cable or chain inboard thebucket will be filled, as it can be held in contact with the sand by thehandle. hen the bucket is filled, it is elevated and carried over thehold of the scow, as shown in Fig. 3, and the bottom is made to drop bystriking the handle 20 of the lockbar with a suitable instrument, or theopening of the bottom may be rendered automatic by causing the lock-bar20 to engage with an.

gdjacent projection located over the deck or old.

The entire device is exceedingly simple, durable, and economic and isparticularly adapted to the purpose to which it is applied.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. Adredging-bucket, consisting of a body, a bottomhinged thereto, latch-bars each extending longitudinally of the body onopposite sides thereof and beyond the lower edge of the same, at whichpoint said bars are each formed with a recess, said recesses beingturned in opposite directions, and a lockbar pivoted to the bottom andbeing arranged to fit in said recesses when the bottom is closed,whereby to lock the same, one end of said lock-bar being extended beyondthe adjacent latch-bar and adapted to form a bandle for unlocking saidlock-bar, as and for the purpose set forth.

2. A dredging-bucket consisting of a body provided with a scoop-spout, adrop-bottom for the body, the bottom being hinged thereto, a lock-barpivoted to the under surface of the bottom, extending beyond oppositeedges thereof, latch-bars secured to the outer surface of the body andextending beyond the bottom thereof, each latch-bar terminating in arecessed head, the recesses of the heads facing in opposite directions,being adapted to receive the end portions of the lockingbar, a yokesecured to one side of the body near the bottom, a handle secured to theyoke, and a guide-pulley located within the said yoke, whereby a cableor a chain attached to the bottom may be carried over the saidguidepulley, for the purpose set forth.

3. A dredging-bucket consisting of a body oval in cross-section, saidbody being provided with a scoop-spout at one end, a bail at the sameend and a bottom hinged at the 0pposite end,latch-bars attached to thenarrower outer side surfaces of the body, longitudinally thereof, theheads of the latch-bars extending below the bottom of the bucket, thesaid heads being provided with recesses facin gin opposite directions, alock-bar centrally pivoted upon the under surface of the bottom, thelock-bar extending beyond the narrower edges of the bottom, one end ofthe lock-bar serving as a handle, the end portions of the lock-bar beingadapted to enter the recesses in the heads of the latch-bars, ahorizontal yoke secured to the outer side portion of the body in frontof the pivot of the lock-bar, a guide-pulley pivoted in the said yoke,and a lip formed upon the bottom, extending within the said yoke, thelip being adapted to receive one end of a chain or cable arranged to bepassed over the guide-pulley, for the purpose set forth.

HARALD JULIJOS KROMANN.

Witnesses:

MAX JUST, WALTER DE FOREST.

